Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Enzymes

Anatomy & Physiology

3. Energy & Cell Processes

Enzymes

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Multiple Choice

What is the primary function of enzymes secreted by the small intestine and the pancreas in the digestive system?

To break down carbohydrates, proteins, and fats into absorbable units.

To stimulate the production of bile in the liver.

To transport nutrients into the bloodstream.

To neutralize stomach acid and protect the intestinal lining.

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Verified step by step guidance

Understand the role of enzymes in the digestive system: Enzymes are biological catalysts that speed up chemical reactions, specifically the breakdown of food molecules into smaller, absorbable units.

Identify the enzymes secreted by the small intestine and pancreas: The pancreas secretes enzymes like amylase, lipase, and proteases, while the small intestine produces enzymes such as maltase, sucrase, and lactase.

Examine the function of these enzymes: Pancreatic enzymes break down carbohydrates (amylase), proteins (proteases), and fats (lipase) into smaller molecules. Intestinal enzymes further break down carbohydrates into simple sugars.

Consider the absorption process: Once food is broken down into absorbable units, these nutrients can be transported across the intestinal lining into the bloodstream.

Clarify the primary function: The main role of these enzymes is to facilitate the digestion of carbohydrates, proteins, and fats, making them ready for absorption, rather than stimulating bile production or neutralizing stomach acid.